Coffee filter



FIG. 1 is a perspective view of a coffee filter.

FIG. 2 is a top plan view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a front elevational view thereof.

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a left side elevational view of the coffee filter, the rightside elevational view being a mirror image of the left side view.

The ornamental design for a coffee filter, as shown and described.